* Renesas Solutions Highlander Support.
*
* Copyright (C) 2002 Atom Create Engineering Co., Ltd.
- * Copyright (C) 2005 - 2007 Paul Mundt
+ * Copyright (C) 2005 - 2008 Paul Mundt
*
* This contains support for the R7780RP-1, R7780MP, and R7785RP
* Highlander modules.
#include <linux/platform_device.h>
#include <linux/ata_platform.h>
#include <linux/types.h>
+#include <linux/i2c.h>
#include <net/ax88796.h>
#include <asm/machvec.h>
#include <asm/r7780rp.h>
#include <asm/clock.h>
#include <asm/heartbeat.h>
#include <asm/io.h>
+#include <asm/io_trapped.h>
static struct resource r8a66597_usb_host_resources[] = {
[0] = {
.resource = ax88796_resources,
};
+static struct resource smbus_resources[] = {
+ [0] = {
+ .start = PA_SMCR,
+ .end = PA_SMCR + 0x100 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_SMBUS,
+ .end = IRQ_SMBUS,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device smbus_device = {
+ .name = "i2c-highlander",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(smbus_resources),
+ .resource = smbus_resources,
+};
+
+static struct i2c_board_info __initdata highlander_i2c_devices[] = {
+ {
+ I2C_BOARD_INFO("rtc-rs5c372", 0x32),
+ .type = "r2025sd",
+ },
+};
static struct platform_device *r7780rp_devices[] __initdata = {
&r8a66597_usb_host_device,
&m66592_usb_peripheral_device,
&heartbeat_device,
+ &smbus_device,
#ifndef CONFIG_SH_R7780RP
- &cf_ide_device,
&ax88796_device,
#endif
};
+/*
+ * The CF is connected using a 16-bit bus where 8-bit operations are
+ * unsupported. The linux ata driver is however using 8-bit operations, so
+ * insert a trapped io filter to convert 8-bit operations into 16-bit.
+ */
+static struct trapped_io cf_trapped_io = {
+ .resource = cf_ide_resources,
+ .num_resources = 2,
+ .minimum_bus_width = 16,
+};
+
static int __init r7780rp_devices_setup(void)
{
- return platform_add_devices(r7780rp_devices,
+ int ret = 0;
+
+#ifndef CONFIG_SH_R7780RP
+ if (register_trapped_io(&cf_trapped_io) == 0)
+ ret |= platform_device_register(&cf_ide_device);
+#endif
+
+ ret |= platform_add_devices(r7780rp_devices,
ARRAY_SIZE(r7780rp_devices));
+
+ ret |= i2c_register_board_info(0, highlander_i2c_devices,
+ ARRAY_SIZE(highlander_i2c_devices));
+
+ return ret;
}
device_initcall(r7780rp_devices_setup);
ctrl_outw(0x0001, PA_POFF);
}
-static inline unsigned char is_ide_ioaddr(unsigned long addr)
-{
- return ((cf_ide_resources[0].start <= addr &&
- addr <= cf_ide_resources[0].end) ||
- (cf_ide_resources[1].start <= addr &&
- addr <= cf_ide_resources[1].end));
-}
-
-void highlander_writeb(u8 b, void __iomem *addr)
-{
- unsigned long tmp = (unsigned long __force)addr;
-
- if (is_ide_ioaddr(tmp))
- ctrl_outw((u16)b, tmp);
- else
- ctrl_outb(b, tmp);
-}
-
-u8 highlander_readb(void __iomem *addr)
-{
- unsigned long tmp = (unsigned long __force)addr;
-
- if (is_ide_ioaddr(tmp))
- return ctrl_inw(tmp) & 0xff;
- else
- return ctrl_inb(tmp);
-}
-
/*
* Initialize the board
*/
.mv_setup = highlander_setup,
.mv_init_irq = highlander_init_irq,
.mv_irq_demux = highlander_irq_demux,
- .mv_readb = highlander_readb,
- .mv_writeb = highlander_writeb,
};